Method of making squares



(No Model.)

P.B.BRADLBY. MBTHGD 0E' MAKING SQUARES.

Patented Jan. 5, 1897.

Fpg-l- INVENTOR WITN ESSES UNITED STATES PATENT OEEICE.

FRANKLIN B. BRADLEY, OF BRIDGEPCRT, CONNECTICUT.

METHOD OF MAKING SQUARES.

SPECIFICATION forming part of Letters Patent No. 574,708, dated January5, 1897.

' Application filed April 6, 1896. Serial ND. 586,297. (No model.)

T0 if/ZZ whom, it may concerne.'

Be it known that I, FRANKLIN B. BRADLEY, a citizen of the United States,residing at Bridgeport, in the county of Faireld and State ofConnecticut, have invented a certain new and useful Improved Method ofMaking Squares; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to the art of making squares and similar articles,and 'has forits object to so improve the method of manufacture as toproduce a plurality ot' squares ata single operation.

W ith these ends in view I have devised the new and improved method ofmaking squares, which I will now describe, referring by letters to theaccompanying drawings, forming part of this speeiiieation, in which-Figure l is a plan view illustrating one way in which I carry my novelmethod into effect in making four squares at a single operation; Fig. 2,a similar view illustrating one way in which I carry my novel methodinto effect in making two squares at a single operation; Fig. 3, asimilar view illustrating another way in which I carry my novel methodinto effect in making four squares at a single operation; and Fig. 4 isa similar View illustrating another Way in which I carry my novel methodinto effect in making two squares at a single operation.

In carrying my invention into elfect, supposing that it is desired tomake four squares at a single operation, I either take a blank of metal,such, for example, as I have indicated by A in Fig. l, of suitablelength to form the long arms of two squares lying end to end and ofsuitable width to form the long arms of two squares lying side by side,and in connection with this blank a second blank, such, for example, asI have indicated by B in Fig. l, of suitable length to form the shortarms of two squares lying end to end and of suitable width to form theshort arms of two squares lying side by side, or else I take two blanksof metal, such, for example, as I have indicated by A in Fig. 3, each ofwhich is of suitable length to form the long arms of two squares lyingend to end and of suitable width to form the long arm of a singlesquare, and in connection with these blanks I take two other blanks,such, for example, as I have indicated by B in Fig. 3, each of which isof suitable length to form the short arms of two squares` lying end toend and of suitable width to form the short arm of a single square.These blanks are laid across each other at midlength at right angles. Inthis position they are heated and either welded or brazed together. Theblanks may or may not be recessed at their point of intersection, aspreferred. Having formed either the two blanks or the fourbla-nks intoone compound blank under heat, the compound blank is then separated inany suitable manner, as by means of shears, dies, ora saw, on the linesindicated by a and I) into four complete squares. It will be noticed inFig. 1 that the line a extends the entire length of blank A and the lineb extends the entirelength of blank B, but in Fig. 3 the blanks A' arenormally independent of each other and are only united at their point ofintersection with the blanks B, which are likewise normally independentof each other in the act of welding or brazing. The lines a and btherefore in this mode of carrying my invention into effect are bothshort lines, and the separation of the compound blank into four completesquares may be readily per formed by a single blow of a die.

Should it be required to make two squares at a single operation, insteadof four, I either take a blank of metal, such, for example, as I haveindicated by C in Fig. 2, of suitable width to form the long arms of twosquares and of suitable length to form the long arm of one square, andin connection with this blank a second blank, such, for example, as Ihave indicated by D in 2, of suitable length to form the short arms oftwo squares lying end to end and of suitable width to form the short armof a single square, or else I take two blanks of metal, such, forexample, as I have indicated by C in Fig. 4, each of which is ofsuitable length and width to form the long arm of a single square, andin connection therewith a blank D of sufficient length to form the shortarms of two squares and of sufficient width to form the short arm of asingle square. These blanks are then laid across each other and eitherwelded or brazed together under heat in the same manner as before, blankD lying at the eXtreme end of the blank C or the two blanks C and atright angles thereto, as clearly shown in either Figs. 2 or 4. Thecompound blank is then separated into two complete squares on the lineindicated by c in any suitable manner, as by means ot' shears, dies, ora saw. It will be noticed in Fig. 2 that the line o extends the entirelength of blank C; but in Fig. t the blanks C' are normally independentof each other and are only united at their point of intersection withblank D in the act of welding or brazing. The line c therefore in thismode of carrying my invention into effect is a short line, and theseparation of the compound blank into two complete squares may bereadily performed by a single blow of adie.

It will of course be apparent that the mode of carrying my inventioninto effect illustrated in Fig. 2 may be readily reversed by taking ablank of suitable length to form the short arm of a single square,instead of the long arm, and of suitable width to form the short arms oftwo squares, and in connection with this blank a blank of suitablelength to form the long arms ot' two squares, instead of the short arms,and of suitable width to form the long arm of one square. The sameprincple is likewise true as applied to Fig. 4t, it being of courseunderstood that one of the blanks is of suitable length to form an armof two squares and of suitable width to form an arm of a single squareand that the other blank is of suitable length to form the other arm ofa single square and of suitable width to form the other arm of twosquares, or else that two independent blanks, each of which is ofsuitable length and width to form one of the arms of a square, arewelded or brazed to a blank of suitable width to form the other arm of asingle square and of suitable length to forni the other arm of twosquares. As this is a mere reversal and the principle is precisely thesame in either case, I have not deemed the reversal to requireillustration.

It is of course well understood that in the manufacture of squares theoperation of welding is the most expensive part of the operation. Asthis art has heretofore been carried on each square is madeindependently, a special welding operation being necessary to unite thetwo blanks which together comprise the square, this operation occupyingjust as much time and requiring just as much skill as the welding orbrazing operationby which the compound blank for making either two orfour squares is formed by my present method. The operation of separatingthe compound blank into the separate squares may be performed in Variousways and is a simple and inexpensive operation. After separating thecompound blank into the complete squares the operations required infinishing the squares may be performed in the ordinary or any preferredmanner.

Having thus described my invention, I claim- I. The improvement in theart of making squares which consists in taking one or more blanks ofsuitable size to form the long arms of a plurality of squares, taking ablank or blanks of suitable shape and size to form the short arms of aplurality of squares, welding or bra-zing said blanks together at rightangles to each other and then separating the compound blank intoindependent squares.

E3. The improvement in the art of making squares which consists intaking one or more blanks of suitable length to form the long arms ot'two squares lying end to end and of suitable width to form the long armsof one or more squares lying side by side, taking one or more blanks ofsuitable length to form the short arms of two squares lying end to endand of suitable width to form the short arms of one or more squareslying side by side, placing said blanks across each other at rightangles, then welding the blanks under heat into one compound blank andthen separating the compound blank into four complete squares.

In testimony whereof I affix my sign atu re in presence of twowitnesses.

FRANKLIN B. BRADLEY.

lVitnesses:

A. M. WoosrER, S. V. RICHARDSON.

